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2023 Fiscal Year Research-status Report

Three-Dimensional Global Stability Analysis and Bio-Mimetic Control of Buffet Phenomena via Wings with Wavy Leading and Trailing Edges

Research Project

Project/Area Number 20K14953
Research InstitutionJapan Aerospace EXploration Agency

Principal Investigator

Andrea Sansica  国立研究開発法人宇宙航空研究開発機構, 航空技術部門, 研究開発員 (80867797)

Project Period (FY) 2020-04-01 – 2025-03-31
KeywordsTransonic buffet / Shock-oscillations / Bio-mimetic control / Instability
Outline of Annual Research Achievements

Under certain combinations of speed and incidence, commercial aircraft can experience transonic buffet. Buffet consists of periodic self-sustain loads which cause wing vibrations, consequently reducing the aircraft performance, maneuverability and safety. The objective of this work is to apply bio-mimetic wings characterized by wavy leading- and trailing edges to control buffet. To further investigate the mechanisms of buffet, a numerical method based on global stability has been validated against high-fidelity simulations and applied to full-aircraft configurations. Different characteristics of wavy leading- and trailing-edges have been studied for both periodic and finite wings. When wavy leading-edges were used, transonic buffet was weakened and the related unsteady loads reduced.

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

Some delay occurred due to appointment of the PI to many managerial tasks. The project is however expected to be completed by the end of FY24.

Strategy for Future Research Activity

Some additional simulations for finite wings will be performed to further characterize the control and weakening of transonic buffet.

Causes of Carryover

The remaining amount will be used to purchase data storage for saving all simulations results.

  • Research Products

    (9 results)

All 2024 2023

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results) (of which Invited: 2 results)

  • [Journal Article] Global Stability Analysis of the NASA Common Research Model High-Lift Configuration at Stall Conditions near CLmax2024

    • Author(s)
      Sansica A., Zauner M. and Hashimoto A.
    • Journal Title

      AIAA SCITECH 2024 Forum

      Volume: - Pages: -

    • DOI

      10.2514/6.2024-0493

    • Int'l Joint Research
  • [Journal Article] Effect of Tripping and Domain-Width on Transonic Buffet on Periodic NASA-CRM Airfoils2024

    • Author(s)
      Lusher D.J., Sansica A., Hashimoto A.
    • Journal Title

      arXiv:2401.14793

      Volume: - Pages: -

    • Open Access / Int'l Joint Research
  • [Journal Article] Global Stability Analysis of Full-Aircraft Transonic Buffet at Flight Reynolds Numbers2023

    • Author(s)
      Sansica A. and Hashimoto A.
    • Journal Title

      AIAA Journal

      Volume: 61(10) Pages: 4437-4455

    • DOI

      10.2514/1.J062808

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mach Evolution of the Cylinder Wake Flow Bifurcations2023

    • Author(s)
      Sansica A., Lusher D.J., Hashimoto A.
    • Journal Title

      34th International Symposium on Shock Waves

      Volume: - Pages: -

    • Int'l Joint Research
  • [Presentation] Global Stability Analysis of the NASA Common Research Model High-Lift Configuration at Stall Conditions near CLmax2024

    • Author(s)
      Sansica A., Zauner M. and Hashimoto A.
    • Organizer
      AIAA SCITECH 2024 Forum
  • [Presentation] Global Stability Analysis of the NASA Common Research Model High-Lift Configuration at Stall Conditions near CLmax2024

    • Author(s)
      Sansica A., Zauner M. and Hashimoto A.
    • Organizer
      第55回流体力学講演会/第41回航空宇宙数値シミュレーション技術シンポジウム
  • [Presentation] On the role of CFD and numerical simulations for aviation digital transformation: from conventional to new-generation bio-mimetic aircraft2024

    • Author(s)
      Sansica A.
    • Organizer
      Invited Seminar at Mines Saint-Etienne
    • Invited
  • [Presentation] Buffet onset prediction using global stability analysis for the 7th AIAA CFD Drag Prediction Workshop2023

    • Author(s)
      Sansica A. and Hashimoto A.
    • Organizer
      AIAA AVIATION 2023 Forum
    • Invited
  • [Presentation] Mach Evolution of the Cylinder Wake Flow Bifurcations2023

    • Author(s)
      Sansica A., Lusher D.J., Hashimoto A.
    • Organizer
      34th International Symposium on Shock Waves

URL: 

Published: 2024-12-25  

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